Cabeza, Ricardo A.

[["dc.bibliographiccitation.firstpage","110383"],["dc.bibliographiccitation.journal","Plant Science"],["dc.bibliographiccitation.volume","292"],["dc.contributor.author","Schulze, Joachim"],["dc.contributor.author","Liese, Rebecca"],["dc.contributor.author","Ballesteros, Gabriel"],["dc.contributor.author","Casieri, Leonardo"],["dc.contributor.author","Salinas, Gabriela"],["dc.contributor.author","Cabeza, Ricardo A."],["dc.date.accessioned","2020-12-10T15:20:52Z"],["dc.date.available","2020-12-10T15:20:52Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1016/j.plantsci.2019.110383"],["dc.identifier.issn","0168-9452"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/72834"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Ammonium acts systemically while nitrate exerts an additional local effect on Medicago truncatula nodules"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","1133"],["dc.bibliographiccitation.journal","Frontiers in Plant Science"],["dc.bibliographiccitation.volume","6"],["dc.contributor.author","Avenhaus, Ulrike"],["dc.contributor.author","Cabeza, Ricardo A."],["dc.contributor.author","Liese, Rebecca"],["dc.contributor.author","Lingner, Annika"],["dc.contributor.author","Dittert, Klaus"],["dc.contributor.author","Salinas-Riester, Gabriela"],["dc.contributor.author","Pommerenke, Claudia"],["dc.contributor.author","Schulze, Joachim"],["dc.date.accessioned","2018-11-07T10:19:28Z"],["dc.date.available","2018-11-07T10:19:28Z"],["dc.date.issued","2016"],["dc.description.abstract","Nitrogenase is an oxygen labile enzyme. Microaerobic conditions within the infected zone of nodules are maintained primarily by an oxygen diffusion barrier (ODB) located in the nodule cortex. Flexibility of the ODB is important for the acclimation processes of nodules in response to changes in external oxygen concentration. The hypothesis of the present study was that there are additional molecular mechanisms involved. Nodule activity of Medicago truncatula plants were continuously monitored during a change from 21 to 25 or 30% oxygen around root nodules by measuring nodule H-2 evolution. Within about 2 min of the increase in oxygen concentration, a steep decline in nitrogenase activity occurred. A quick recovery commenced about 8 min later. A qPCR-based analysis of the expression of genes for nitrogenase components showed a tendency toward upregulation during the recovery. The recovery resulted in a new constant activity after about 30 min, corresponding to approximately 90% of the pre-treatment level. An RNAseq-based comparative transcriptome profiling of nodules at that point in time revealed that genes for nodule-specific cysteine-rich (NCR) peptides, defensins, leghaemoglobin and chalcone and stilbene synthase were significantly upregulated when considered as a gene family. A gene for a nicotianamine synthase-like protein (Medtr1g084050) showed a strong increase in count number. The gene appears to be of importance for nodule functioning, as evidenced by its consistently high expression in nodules and a strong reaction to various environmental cues that influence nodule activity. A Tnt1-mutant that carries an insert in the coding sequence (cds) of that gene showed reduced nitrogen fixation and less efficient acclimation to an increased external oxygen concentration. It was concluded that sudden increases in oxygen concentration around nodules destroy nitrogenase, which is quickly counteracted by an increased neoformation of the enzyme. This reaction might be induced by increased formation of NCR peptides and necessitates an efficient iron supply to the bacteroid, which is probably mediated by nicotianamine. The paper is dedicated to the 85th birthday of Prof. Dr. Gunther Schilling, University of Halle/Wittenberg, Germany, https://de.wikipedia.org/wiki/Gunther_Schilling"],["dc.description.sponsorship","Open-Access Publikationsfonds 2015"],["dc.identifier.doi","10.3389/fpls.2015.01133"],["dc.identifier.isi","000367654300001"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/12764"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/41665"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Frontiers Media Sa"],["dc.relation.issn","1664-462X"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Short-Term Molecular Acclimation Processes of Legume Nodules to Increased External Oxygen Concentration"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","611"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Journal of soil science and plant nutrition"],["dc.bibliographiccitation.lastpage","619"],["dc.bibliographiccitation.volume","19"],["dc.contributor.author","Cabeza, Ricardo A."],["dc.contributor.author","Steingrobe, Bernd"],["dc.contributor.author","Claassen, Norbert"],["dc.date.accessioned","2020-12-10T14:14:49Z"],["dc.date.available","2020-12-10T14:14:49Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1007/s42729-019-00061-8"],["dc.identifier.eissn","0718-9516"],["dc.identifier.issn","0718-9508"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/71513"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Phosphorus Fractionation in Soils Fertilized with Recycled Phosphorus Products"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","173"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Nutrient Cycling in Agroecosystems"],["dc.bibliographiccitation.lastpage","184"],["dc.bibliographiccitation.volume","91"],["dc.contributor.author","Cabeza, Ricardo A."],["dc.contributor.author","Steingrobe, Bernd"],["dc.contributor.author","Roemer, Wilhelm"],["dc.contributor.author","Claassen, Norbert"],["dc.date.accessioned","2018-11-07T08:50:08Z"],["dc.date.available","2018-11-07T08:50:08Z"],["dc.date.issued","2011"],["dc.description.abstract","World phosphorus (P) resources are limited and may be exhausted within 70-175 years. Therefore recycling of P from waste materials by chemical or thermal processes is important. This study evaluated the effectiveness of recycled P products from sewage sludge and animal wastes as P fertilizer. Four products were obtained from chemical processes, three magnesium-ammonium-phosphates (MAP) of different sewage treatment plants and a Ca phosphate precipitated from waste-water (Ca-P) and four from thermal processes, an alkali sinter phosphate (Sinter-P), a heavy metal depleted sewage sludge ash (Sl-ash), a cupola furnace slag made from sewage sludge (Cupola slag) and a meat-and-bone meal ash (MB meal ash). The effectiveness of these products as P fertilizers compared with triple superphosphate (TSP) and phosphate rock (PR) was determined in a 2-year pot experiment with maize (Zea mays L., cv. Atletico) in two soils with contrasting pH (pH(CaCl(2)) 4.7 and 6.6). The parameters used to evaluate the effectiveness were P uptake, P concentration in soil solution (C(Li)) and isotopically exchangeable P (IEP). MAP products were as effective as TSP in both soils, while Ca-P was only effective in the acid soil. Sinter-P was as effective as TSP in the acid soil, while Cupola slag was in the neutral soil. The products Sl-ash and MB meal ash were of low effectiveness and were comparable to PR. The effect of the fertilizers on IEP, but not on C(Li), described their effectiveness. Recycled P products obtained by chemical processes, especially MAP, could be directly applied as P fertilizers, while products such as Sl-ash and MB meal ash are potential raw materials for P fertilizer production."],["dc.identifier.doi","10.1007/s10705-011-9454-0"],["dc.identifier.isi","000297360500006"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/21627"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1385-1314"],["dc.title","Effectiveness of recycled P products as P fertilizers, as evaluated in pot experiments"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","688"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Journal of Plant Nutrition and Soil Science"],["dc.bibliographiccitation.lastpage","695"],["dc.bibliographiccitation.volume","176"],["dc.contributor.author","Cabeza, Ricardo A."],["dc.contributor.author","Steingrobe, Bernd"],["dc.contributor.author","Roemer, Wilhelm"],["dc.contributor.author","Claassen, Norbert"],["dc.date.accessioned","2018-11-07T09:18:55Z"],["dc.date.available","2018-11-07T09:18:55Z"],["dc.date.issued","2013"],["dc.description.abstract","Isotopically exchangeable P (IEP) is usually considered to be completely plant-available and the major source of P for plant uptake. The aim of the present study is to test whether plants can, besides IEP, also use non-IEP and if part of the IEP has an equilibrium concentration in soil solution which is below the minimum concentration, C-Lmin, and can therefore not be taken up by plants. A pot experiment was carried out with maize for two years on two soils, an acid sandy and a neutral loamy soil, either without P fertilizer or fertilized with ten P sources of different solubility. Throughout both years of the study, pots were kept moist either without plants or planted twice with maize (Zea mays L., cv. Athletico). At the end of the experiment, plant P uptake, P concentration in the soil solution (C-L), and P accessible to isotopic exchange within 5 d (E-5d) were measured. Plant growth decreased the E-5d which was about equal to P uptake by maize for most treatments in the acid soil. But for some treatments, i.e., five in the acid and eight in the neutral soil, P uptake was up to 50% larger than the decrease of E-5d, indicating that plants had, besides IEP, also used P from non-IEP sources. At adequate P supply, both soils had an E-5d of about 100 mg P (kg soil)(-1), but about 30 to 40 mgkg(-1) of this IEP had an equilibrium P concentration in the soil solution below C-Lmin of 0.1 mol L-1 at which P would actually not be plant-available. This study shows that plants take up P mainly from IEP, but not the whole IEP is plant-available. Furthermore, plants may also use P from non-IEP sources."],["dc.identifier.doi","10.1002/jpln.201200296"],["dc.identifier.isi","000327899800006"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/28512"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-v C H Verlag Gmbh"],["dc.relation.issn","1522-2624"],["dc.relation.issn","1436-8730"],["dc.title","Plant availability of isotopically exchangeable and isotopically nonexchangeable phosphate in soils"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","637"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","The Plant Journal"],["dc.bibliographiccitation.lastpage","648"],["dc.bibliographiccitation.volume","81"],["dc.contributor.author","Cabeza, Ricardo A."],["dc.contributor.author","Liese, Rebecca"],["dc.contributor.author","Fischinger, Stephanie Anastasia"],["dc.contributor.author","Sulieman, Saad"],["dc.contributor.author","Avenhaus, Ulrike"],["dc.contributor.author","Lingner, Annika"],["dc.contributor.author","Hein, Hans"],["dc.contributor.author","Koester, Beke"],["dc.contributor.author","Baumgarten, Vanessa"],["dc.contributor.author","Dittert, Klaus"],["dc.contributor.author","Schulze, Joachim"],["dc.date.accessioned","2018-11-07T10:01:25Z"],["dc.date.available","2018-11-07T10:01:25Z"],["dc.date.issued","2015"],["dc.description.abstract","Symbiotic nitrogen fixation is a process of considerable economic, ecological and scientific interest. The central enzyme nitrogenase reduces H+ alongside N-2, and the evolving H-2 allows a continuous and non-invasive in vivo measurement of nitrogenase activity. The objective of this study was to show that an elaborated set-up providing such measurements for periods as long as several weeks will produce specific insight into the nodule activity's dependence on environmental conditions and genotype features. A system was developed that allows the air-proof separation of a root/nodule and a shoot compartment. H-2 evolution in the root/nodule compartment can be monitored continuously. Nutrient solution composition, temperature, CO2 concentration and humidity around the shoots can concomitantly be maintained and manipulated. Medicago truncatula plants showed vigorous growth in the system when relying on nitrogen fixation. The set-up was able to provide specific insights into nitrogen fixation. For example, nodule activity depended on the temperature in their surroundings, but not on temperature or light around shoots. Increased temperature around the nodules was able to induce higher nodule activity in darkness versus light around shoots for a period of as long as 8h. Conditions that affected the N demand of the shoots (ammonium application, Mg or P depletion, super numeric nodules) induced consistent and complex daily rhythms in nodule activity. It was shown that long-term continuous measurements of nodule activity could be useful for revealing special features in mutants and could be of importance when synchronizing nodule harvests for complex analysis of their metabolic status."],["dc.identifier.doi","10.1111/tpj.12751"],["dc.identifier.isi","000350036200009"],["dc.identifier.pmid","25640854"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/38013"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","1365-313X"],["dc.relation.issn","0960-7412"],["dc.title","Long-term non-invasive and continuous measurements of legume nodule activity"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","6031"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","International Journal of Molecular Sciences"],["dc.bibliographiccitation.lastpage","6045"],["dc.bibliographiccitation.volume","15"],["dc.contributor.author","Cabeza, Ricardo A."],["dc.contributor.author","Lingner, Annika"],["dc.contributor.author","Liese, Rebecca"],["dc.contributor.author","Sulieman, Saad"],["dc.contributor.author","Senbayram, Mehmet"],["dc.contributor.author","Traenkner, Merle"],["dc.contributor.author","Dittert, Klaus"],["dc.contributor.author","Schulze, Joachim"],["dc.date.accessioned","2018-11-07T09:41:34Z"],["dc.date.available","2018-11-07T09:41:34Z"],["dc.date.issued","2014"],["dc.description.abstract","Legumes match the nodule number to the N demand of the plant. When a mutation in the regulatory mechanism deprives the plant of that ability, an excessive number of nodules are formed. These mutants show low productivity in the fields, mainly due to the high carbon burden caused through the necessity to supply numerous nodules. The objective of this study was to clarify whether through optimal conditions for growth and CO2 assimilation a higher nodule activity of a supernodulating mutant of Medicago truncatula (M. truncatula) can be induced. Several experimental approaches reveal that under the conditions of our experiments, the nitrogen fixation of the supernodulating mutant, designated as sunn (super numeric nodules), was not limited by photosynthesis. Higher specific nitrogen fixation activity could not be induced through short-or long-term increases in CO2 assimilation around shoots. Furthermore, a whole plant P depletion induced a decline in nitrogen fixation, however this decline did not occur significantly earlier in sunn plants, nor was it more intense compared to the wild-type. However, a distinctly different pattern of nitrogen fixation during the day/night cycles of the experiment indicates that the control of N-2 fixing activity of the large number of nodules is an additional problem for the productivity of supernodulating mutants."],["dc.identifier.doi","10.3390/ijms15046031"],["dc.identifier.fs","608778"],["dc.identifier.isi","000336841200057"],["dc.identifier.pmid","24727372"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/11711"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/33763"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Mdpi Ag"],["dc.relation.issn","1422-0067"],["dc.rights.access","openAccess"],["dc.subject.mesh","Carbon Dioxide"],["dc.subject.mesh","Medicago truncatula"],["dc.subject.mesh","Nitrogen"],["dc.subject.mesh","Nitrogen Fixation"],["dc.subject.mesh","Phosphorus"],["dc.subject.mesh","Photosynthesis"],["dc.subject.mesh","Plant Shoots"],["dc.subject.mesh","Root Nodules, Plant"],["dc.title","The Activity of Nodules of the Supernodulating Mutant Mt(sunn) Is not Limited by Photosynthesis under Optimal Growth Conditions"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","400"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","PLANT PHYSIOLOGY"],["dc.bibliographiccitation.lastpage","411"],["dc.bibliographiccitation.volume","164"],["dc.contributor.author","Cabeza, Ricardo A."],["dc.contributor.author","Koester, Beke"],["dc.contributor.author","Liese, Rebecca"],["dc.contributor.author","Lingner, Annika"],["dc.contributor.author","Baumgarten, Vanessa"],["dc.contributor.author","Dirks, Jan"],["dc.contributor.author","Salinas-Riester, Gabriela"],["dc.contributor.author","Pommerenke, Claudia"],["dc.contributor.author","Dittert, Klaus"],["dc.contributor.author","Schulze, Joachim"],["dc.date.accessioned","2018-11-07T09:47:01Z"],["dc.date.available","2018-11-07T09:47:01Z"],["dc.date.issued","2014"],["dc.description.abstract","The mechanism through which nitrate reduces the activity of legume nodules is controversial. The objective of the study was to follow Medicago truncatula nodule activity after nitrate provision continuously and to identify molecular mechanisms, which down-regulate the activity of the nodules. Nodule H-2 evolution started to decline after about 4 h of nitrate application. At that point in time, a strong shift in nodule gene expression (RNA sequencing) had occurred (1,120 differentially expressed genes). The most pronounced effect was the down-regulation of 127 genes for nodule-specific cysteine-rich peptides. Various other nodulins were also strongly down-regulated, in particular all the genes for leghemoglobins. In addition, shifts in the expression of genes involved in cellular iron allocation and mitochondrial ATP synthesis were observed. Furthermore, the expression of numerous genes for the formation of proteins and glycoproteins with no obvious function in nodules (e. g. germins, patatin, and thaumatin) was strongly increased. This occurred in conjunction with an up-regulation of genes for proteinase inhibitors, in particular those containing the Kunitz domain. The additionally formed proteins might possibly be involved in reducing nodule oxygen permeability. Between 4 and 28 h of nitrate exposure, a further reduction in nodule activity occurred, and the number of differentially expressed genes almost tripled. In particular, there was a differential expression of genes connected with emerging senescence. It is concluded that nitrate exerts rapid and manifold effects on nitrogenase activity. A certain degree of nitrate tolerance might be achieved when the down-regulatory effect on late nodulins can be alleviated."],["dc.identifier.doi","10.1104/pp.113.228312"],["dc.identifier.isi","000329447400031"],["dc.identifier.pmid","24285852"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/35015"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Soc Plant Biologists"],["dc.relation.issn","1532-2548"],["dc.relation.issn","0032-0889"],["dc.title","An RNA Sequencing Transcriptome Analysis Reveals Novel Insights into Molecular Aspects of the Nitrate Impact on the Nodule Activity of Medicago truncatula"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","6035"],["dc.bibliographiccitation.issue","20"],["dc.bibliographiccitation.journal","Journal of Experimental Botany"],["dc.bibliographiccitation.lastpage","6048"],["dc.bibliographiccitation.volume","65"],["dc.contributor.author","Cabeza, Ricardo A."],["dc.contributor.author","Liese, Rebecca"],["dc.contributor.author","Lingner, Annika"],["dc.contributor.author","von Stieglitz, Ilsabe"],["dc.contributor.author","Neumann, Janice"],["dc.contributor.author","Salinas-Riester, Gabriela"],["dc.contributor.author","Pommerenke, Claudia"],["dc.contributor.author","Dittert, Klaus"],["dc.contributor.author","Schulze, Joachim"],["dc.date.accessioned","2018-11-07T09:33:09Z"],["dc.date.available","2018-11-07T09:33:09Z"],["dc.date.issued","2014"],["dc.description.abstract","Legume nodules are plant tissues with an exceptionally high concentration of phosphorus (P), which, when there is scarcity of P, is preferentially maintained there rather than being allocated to other plant organs. The hypothesis of this study was that nodules are affected before the P concentration in the organ declines during whole-plant P depletion. Nitrogen (N-2) fixation and P concentration in various organs were monitored during a whole-plant P-depletion process in Medicago truncatula. Nodule gene expression was profiled through RNA-seq at day 5 of P depletion. Until that point in time P concentration in leaves reached a lower threshold but was maintained in nodules. N-2-fixation activity per plant diverged from that of fully nourished plants beginning at day 5 of the P-depletion process, primarily because fewer nodules were being formed, while the activity of the existing nodules was maintained for as long as two weeks into P depletion. RNA-seq revealed nodule acclimation on a molecular level with a total of 1140 differentially expressed genes. Numerous genes for P remobilization from organic structures were increasingly expressed. Various genes involved in nodule malate formation were upregulated, while genes involved in fermentation were downregulated. The fact that nodule formation was strongly repressed with the onset of P deficiency is reflected in the differential expression of various genes involved in nodulation. It is concluded that plants follow a strategy to maintain N-2 fixation and viable leaf tissue as long as possible during whole-plant P depletion to maintain their ability to react to emerging new P sources (e. g. through active P acquisition by roots)."],["dc.identifier.doi","10.1093/jxb/eru341"],["dc.identifier.isi","000344658800026"],["dc.identifier.pmid","25151618"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/31906"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Oxford Univ Press"],["dc.relation.issn","1460-2431"],["dc.relation.issn","0022-0957"],["dc.title","RNA-seq transcriptome profiling reveals that Medicago truncatula nodules acclimate N-2 fixation before emerging P deficiency reaches the nodules"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","46264"],["dc.bibliographiccitation.journal","Scientific Reports"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Liese, Rebecca"],["dc.contributor.author","Schulze, Joachim"],["dc.contributor.author","Cabeza, Ricardo A."],["dc.date.accessioned","2018-11-07T10:25:02Z"],["dc.date.available","2018-11-07T10:25:02Z"],["dc.date.issued","2017"],["dc.description.abstract","Nitrogen fixation of Medicago truncatula is regulated by the nitrogen status of leaves through inducing a repeatedly occurring 24-h nodule activity rhythm that reduces per day nitrogen fixation. The hypotheses of the present study were that (1) long-term moderate whole-plant P deficiency in Medicago truncatula induces an according daily rhythm in nitrogenase activity comparable to that induced by nitrate application and (2), the changes in the nodule transcriptome that go along with a strong nitrogenase activity decline during the afternoon would be similar under P deficiency or after nitrate supply. The nodules of plants in a low P treatment developed a rhythmic pattern of activity that resembled the pattern following nitrate application. A comprehensive, RNAseq-based comparative transcriptome profiling of nodules during a repeated part of the rhythm revealed similarities between P deficiency versus nitrate supply. Under both treatments, the formation of nitrogenase was targeted by a reduction in the expression of genes for nodule-specific cysteine-rich peptides (NCR), and possibly also by a disturbance of the inner cell iron allocation. A strong reduction in the expression of leghemoglobin is likely to have restricted the supply of oxygen for respiration."],["dc.identifier.doi","10.1038/srep46264"],["dc.identifier.isi","000398978400001"],["dc.identifier.pmid","28393902"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14936"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/42771"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","Nature Publishing Group"],["dc.relation.issn","2045-2322"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0/"],["dc.title","Nitrate application or P deficiency induce a decline in Medicago truncatula N-2-fixation by similar changes in the nodule transcriptome"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]